// 上传图片
export function uploadPictures(files) {
    console.log('上传的文件',files)
    var p = new Promise(function (resolve, reject) {
      var url = 'https://bootapi.51bmj.cn/sys/common/upload';
      var xhr = new XMLHttpRequest();
      xhr.open('POST', url, true);
      xhr.onload = function () {
        // 请求完成
        if (this.status === 200) {
          var data = JSON.parse(xhr.responseText);
          if (data.success == true) {
            resolve(data);
          } else {
            resolve('上传失败');
          }
        } else {
          resolve('上传失败');
        }
      };
      var formdata = new FormData();
      formdata.append('biz', 'test');
      formdata.append('file', files);
      xhr.send(formdata);
    });
    return p;
  }